Welder&#39;s cleaning tool



Aug. 18, 1942. J. L, SAVOY WELDERS CLEANING/TOOL Filed Jan. 24, 1941 VENTOR. xjqyy A wr' if a ae Patented Aug. 18, 1942 UNITED STATES PATENT OFFICE WELDERS CLEANING TOOL Jack L. Savoy, Detroit, Mich.

Application January 24, 1941, Serial No. 375,722

2 Claims.

This invention relates to improvements in Welders cleaning tools with which scale and other foreign matter may be easily removed from surfaces of workpieces to be welded to one another.

It is an object of the invention to provide a welders cleaning tool including a brush, a supporting shaft therefor, and coacting means for readily and securel supporting the former upon the latter. Moreover the coacting means are so arranged that brushes of somewhat different dimensions may be equally quickly and effectively mounted in position.

Another object of the invention is to provide a welders cleaning tool wherein the brush is so mounted upon its shaft that the former may be quickly and easily reversed, so that when the bristles at the end of the brush over the outer extremity of the shaft become worn the brush may be turned so that the bristles at its opposite extremity then extend over the outer end of the shaft so that they will then be subjected to greater wear.

A further object of the invention is to provide a welders cleaning tool wherein a chisel is detachably mounted on the outer extremity of the shaft and also serves to hold the outer extremity of the brush relative to the said shaft.

Yet another object of the invention is to provide a welders cleaning tool which is cheap and simple to manufacture, and easy to assemble.

Having thus briefly stated some of the objects and advantages of the invention I will now proceed to describe the latter in detail with the aid of the accompanying drawing, in which:

- Figure 1 illustrates a side view of the invention,

Figure 2 is an inverted plan, and

Figure 3 is a partial plan view showing the top of the brush.

Referring to the drawing, I designates a circular supporting shaft of uniform diameter projecting from a suitable handle 2. 3 denotes a brush having bristles I suitably carried thereby and projecting from one side thereof. Formed in the back of the brush adjacent both ends are recesses 5 of the same size and. depth, and extending through the said brush substantially centrally of its length and width and through a counterbore 3a formed in the back thereof is a screw 6. The brush is located over the shaft I and a rest 1 seated in one of the recesses 5 bears against the said shaft towards its inner extremity. Slidably mounted on the shaft I is a support member 8 having a radial projection 8a which fits into the counterbore 3a, and formed through the projection and the said member is a threaded opening 9 into which the screw I5 is threaded. This screw bears against the shaft I and holds the brush 3 and member 8 immovable, and. a flat face 81) formed on one side of the member 8 against the back of the brush. Seated in the other brush recess 5 which is positioned substantially directly over the outer extremity of the shaft I is the reduced extremity IIla of an element III. This element is also apertured at I I to receive the outer extremity of the shaft I, and the outer end of this shaft is threaded to engage a corresponding threaded portion I Ia formed in the said aperture. In the present instance the element II is shown in the form of a chisel extending laterally from the shaft I so that it may also be employed for cleaning purposes to supplement the brush.

It will thus be seen that centrally of its length the brush 3 is amply supported by the member 8, and that when the screw 6 is tightened it engages the shaft I so that the brush is then held immovable relative to the latter. The rest I retains the desired spacing between the inner end of the brush 3 and the shaft I, and the reduced extremity IIIa of the element Ill seated in the other recess 5 maintains the desired spacing between the outer extremity of the brush and the outer end of the shaft. Thus the brush is held rigidly upon the shaft. When attaching the brush 3 to the shaft I it is best to screw the latter into the element In prior to tightening the screw 6 because the shaft is then free to be rotated in the supporting member 8.

When the bristles 4 at the outer end of the brush 3 have become worn down obviously the brush may be readily turned end for end so that the rest I and the reduced element extremity Illa engage the other recesses 5. Due to the sliding movement permitted the support member 8 on the shaft I, and the fact that the rest 1 may bear against the shaft anywhere along its length brushes of somewhat different lengths may be mounted upon the shaft, and the brush turned end for end even if the screw 6 does not extend exactly through the center of the brush. The bristles 4, which are usually made of wire may be mounted in the brush in any preferred manner. It will also be noted that the diameter of the threaded end of the shaft I is preferably made substantially the same diameter as the shaft itself and the unthreaded portion of the latter is partly supported in the aperture I I thereby minimizing the possibility of the shaft breaking across the inner extremity of its threaded portion when the tool is in use.

Whereas the invention has been described as a welders cleaning tool obviously it may also be employed for other cleaning purposes also, such as for removing scale and paint; and again, while in the foregoing the preferred embodiment has been described and shown, it is understood that alterations and modifications may be made thereto provided the said alterations and modifications fall Within the scope of the appended claims.

What I claim is:

1. A cleaning tool comprising a shaft termihating at one extremity in a handle, a support member through which the shaft extends and axially movable therealong, a brush substantially parallel with the shaft and held spaced therefrom by said member, the bristles of the brush extending from the side of the latter remote from the shaft, a radial projection on said member extending into a counterbore formed in the brush, a

screw extending through the brush in threaded engagement with an aperture formed through the member and its projection, said screw termihating against said shaft to hold the latter immovable thereon, and spacing means extending between the shaft and the brush adjacent each extremity of the latter.

2. A cleaning tool comprising a shaft, an annular support axially slidable therealong, said support having a radially disposed threaded opening formed therein, a brush parallel with the shaft, a screw extending through the brush substantially centrally of its length in threaded engagement with the threaded opening, said screw being adapted to engage the shaft and prevent movement of the member therealong, and spacing means between the brush and shaft adjacent each extremity of the former.

JACK L. SAVOY. 

